Serena Williams is poised to move up the ranks of accomplished professional women's tennis players this year. (TennisNow.com)

BIRMINGHAM, Alabama - Erwin Ong of TennisNow.com has
established the saying of the year in professional tennis - What Will Serena
Do?

Ong observes that American Serena Williams
returned to the court with a vengeance in 2012, racking up two more Grand Slam
titles, two Olympic gold medals and the year-end tour championship to add more
pages to her already amazing legacy.

Much like Roger Federer on the men's side of the sport, as Serena enters her
30s still inexplicably in her prime, the records she is coming in sight of are
some of the greatest in the history of her sport.
Here's Ong's look at some of the marks on which the younger Williams sister is
bearing down as 2013 begins:

Grand Slam Titles: She has 15, good
for fourth all-time. A truly remarkable season could get her three more, tying
her with Chris Evert and Martina Navratilova for No. 2 on the Open Era list.

Grand Slam Quarterfinal Appearances:
Has 34. She needs one more to move past
Arantxa Sanchez-Vicario into sole possession of fourth place.

Australian Open Match Wins: Has 54. Needs three to pass Lindsay Davenport
for the most in Open Era history.

French Open Match Wins: Has 39, tied for ninth all-time. Two more will
tie sister Venus for eighth; three more will tie Gabriela Sabatini for seventh.

Wimbledon Match Wins: Has 67. Trails sister Venus by four for fourth
place all-time.

Career WTA Titles: Has 46, good for
sixth. Needs seven to catch Monica Seles for fifth, nine to tie Lindsay
Davenport for fourth.

Career WTA Finals: Has appeared in
61, tied for eighth with Justine Henin. Sister Venus is seventh with 71.

Career Wins: Has 554. Needs 42 to
pass Monica Seles for 15th.

Career Wins vs. No. 1: Has 16, the
second most in Open Era history. Two more will tie her for first with Martina
Navratilova.